<template>
  <div class="icons">
    <swiper :options="swiperOption">
      <swiper-slide v-for="(page, index) of pages" :key="index">
      <div class="icon" v-for="item of page" :key="item.id">
        <div class="icon-img">
          <img :src="item.imgUrl" class="icon-img-content">
        </div>
        <p class="icon-desc">{{ item.desc }}</p>
      </div>
      </swiper-slide>
    </swiper>
  </div>
</template>

<script>
export default {
  name: 'HomeIcons',
  props: {
    iconList: Array
  },
  data () {
    return {
      swiperOption: {
        autoplay: false
      }
    }
  },
  computed: {
    pages () {
      const pages = []
      this.iconList.forEach((item, index) => {
        const page = Math.floor(index / 8)
        if (!pages[page]) {
          pages[page] = []
        }
        pages[page].push(item)
      })
      return pages
    }
  }
}
</script>

<style lang="stylus" scoped>
@import '~styles/variables.styl'
@import '~styles/mixins.styl'
  .icons >>> .swiper-container
    height 0
    padding-bottom 50%
  .icons
    margin-top .1rem
    .icon
        position relative
        float left
        width 25%
        height 0
        padding-bottom 25%
        .icon-img
            position absolute
            top 0
            left 0
            right 0
            bottom .44rem
            box-sizing border-box
            padding .1rem
            .icon-img-content
              height 100%
              display block
              margin 0 auto
          .icon-desc
            position absolute 
            display block
            left 0
            right 0
            bottom 0
            height .44rem
            line-height .44rem
            color $fontColor
            text-align center
            ellipsis()
</style>

